Sigma SD1 Merrill Review | 108 Data compared

The Sigma SD1 is a specialized DSLR featuring a 15.3MP x 3 Foveon X3 sensor that delivers exceptional, high-detail image quality at low ISO settings, housed in a robust, weather-sealed magnesium alloy body. It is praised for its comfortable handling, large optical viewfinder, and straightforward physical controls. However, the camera is limited by painfully slow file write times, poor high-ISO performance beyond ISO 800, and a lack of modern features like live view or video. Furthermore, it requires exclusive use of slow, proprietary Sigma Photo Pro software, making it a niche tool rather than a versatile system.

The Sigma SD1 Merrill review by Tobias Hjorth highlights a camera that offers unmatched base-ISO image quality packed inside a rugged, well-built body. The core strength of the camera lies in its unique Foveon X3 sensor technology, which captures full red, green, and blue color data at every single pixel location, eliminating the need for an aliasing filter. At low ISO settings, this produces class-leading sharpness, staggering detail, and exceptional dynamic range recovery via the proprietary "X3 Fill Light" feature in the included Sigma Photo Pro software. Ergonomically, the camera shines with a very deep, comfortable grip and an intuitive "Quick Selection" menu that makes changing vital settings incredibly fast. However, the reviewer emphasizes that the SD1 Merrill is a highly niche tool plagued by severe performance and speed limitations. The most notable con is its painfully slow write-to-card speed, which forces users to wait what feels like ages just to preview a sequence of images. Additionally, the Foveon sensor struggles heavily at higher sensitivities, introducing massive, uncorrectable patches of green and red noise at ISO 1600 and above. The...

The Sigma SD1 Merrill first look review by professional landscape photographer Vieri Bottazzini highlights the camera as a highly specialised, "spartan" tool built for maximum image quality under specific working conditions. The camera's standout feature is its Foveon sensor, which delivers exceptional sharpness, impressive micro-contrast, and an artifact-free resolution comparable to a 30 MP Bayer sensor. Additional pros include a comfortable ergonomic grip, logical on-camera controls (such as a separate AF button and an accessible Drive control dial), and an exceptionally quiet, well-damped shutter mechanism. The robust magnesium body is also notably lighter than rival cameras like the Nikon D800E. However, the reviewer identifies several major cons that prevent it from being a universal camera. On the hardware and firmware side, it completely lacks Live View and an electronic level—both critical for modern landscape work—and features a restrictive focus system where Single Focus is locked to Focus Priority. Operationally, the file writing speed is incredibly slow. Saving a 7-shot burst causes the camera's playback and menu systems to lock up for roughly a minute and a half. Furthermore, the Foveon...

The Canon EOS-1D X marks a significant evolution in professional DSLRs by replacing both the high-speed EOS-1D Mark IV and the high-resolution EOS-1Ds Mark III with a singular, versatile flagship body. Designed with a heavy focus on sports and action photography, it transitions from Canon's previous APS-H crop sensor layout to a newly designed 18.1-million-pixel full-frame CMOS sensor with gapless microlenses,. Powered by dual Digic 5+ processors, the camera operates at high speeds, offering continuous shooting rates of 12 frames per second (fps) with full autofocus functionality, or up to 14 fps with the mirror locked up,. It is built around a highly accurate, customisable 61-point autofocus system, and features an advanced 100,000-pixel RGB exposure metering system that supports face detection directly through the optical viewfinder. The camera earns distinct praise for several pros, most notably its exceptional low-light performance and image detail; the massive photosites yield impressively clean results, with minimal noise and high resolving power even when pushed to ISO 25,600,. Its robust, weather-sealed magnesium body, lightning-fast frame rate, and deep customisation options for tracking moving subjects make...

The ePHOTOzine review describes the Sigma SD1 Merrill as a robust, metal-clad DSLR featuring a comfortable, secure handgrip, despite its angular design and lack of a top-plate LCD. Key advantages include its solid construction and a functional external button layout paired with a Quick Set menu for efficient operation. Conversely, the review highlights significant drawbacks, including poor battery life lasting just over 150 shots, slow image playback, and a low-resolution screen. Further, users may encounter frustrating operational quirks, such as the rear monitor activating when changing ISO, and limited RAW buffer capacity, capping out at seven shots.

The Sigma SD1 Merrill is a highly unconventional digital SLR featuring a unique 46-megapixel APS-C Foveon X3 sensor. Unlike traditional Bayer sensors, the Foveon architecture layers three separate 15-megapixel tiers—each dedicated to capturing red, green, or blue light. This design eliminates the need for an anti-alias filter, preventing the moiré effect while rendering exceptionally fine details and distinct colour replication. Structurally, the camera boasts an excellent, rugged build quality alongside a physical control layout dense enough to satisfy demanding photographers. Additionally, it features a glass pentaprism viewfinder with 0.95x magnification and a removable infrared (IR) filter that permits full-spectrum and infrared photography. However, the camera falls short in performance, making it a difficult choice for anyone who isn't a dedicated Foveon enthusiast. Major drawbacks include a sluggish operating speed and an arduous Raw workflow that poses a major challenge for high-volume shooters. The autofocus system lacks reliability out of the box, necessitating time-consuming micro-adjustments. Furthermore, the 3-inch rear LCD monitor is of middling quality with a low 460k-dot resolution, the device provides no video support, and its standard JPEG output...

The TechRadar review evaluates the Sigma SD1 Merrill, a rebranded version of the original 46-megapixel SD1 DSLR. Originally launched at an unattainable price point of £6,200 / $9,700, Sigma slashed the price tag a year later to a more practical £1,840 / $1,900. The camera's main selling point is its unique Foveon X3 image sensor, which features three individual layers embedded in silicon to capture full colour information at every pixel site rather than relying on standard Bayer interpolation. Built strictly for traditional photography, the feature set is completely stripped back, ditching modern staples like intelligent auto, scene modes, live view, and video recording. The camera functions as a "Jekyll and Hyde" device, showing immense strength in specific areas while being heavily plagued by operational bottlenecks. On the positive side, it boasts excellent image quality at low ISOs, delivering an incredible amount of fine detail, alongside a robust build quality with a weather-sealed magnesium alloy body. Conversely, the cons include frustratingly slow write times—taking up to 90 seconds to clear a full buffer—poor performance and severe noise at high ISO...